Gypsum pressure ball machine Weifang

The main impurities on the gypsum gypsum pressure ball machine: 1. Coke and soot: coke and soot combustible organic matter, according to European gypsum industry standard, gypsum combustible organic matter content can not exceed 0.1%, because of its high conductivity, when Electrostatic Precipitator ineffective very easy to mix gypsum. Its shape more porous, round, sometimes elongated, black. With the naked eye and a magnifying glass it is easy to tell from the gypsum. Wherein coke and soot will not change when calcined gypsum. Plaster mixed with water, because of its density is relatively light, it is easy to float in the water. Therefore, when making use of gypsum plaster board, because of its focus on the interface between the plaster and the paper, and the impact adhesive plaster and paper, and coke and soot will destroy the foam, thereby affecting the increase in gypsum board Jing foaming effect, increasing the density of gypsum board. Production with gypsum wall plaster, the coke and soot wall plaster will produce black spots, affect the appearance, and coke and soot floating on the surface, due to the hydrophobic difficult moist walls, and the impact of construction quality. Add approximately 0.1% in coal-fired power plants in the gypsum calcium carbonate can effectively eliminate the coke and soot. 2. Alumina and silica: If alumina and silica in the presence of coarse particles, due to their hardness greater than plaster, it will affect the grindability of gypsum, lower grinding efficiency, increase equipment wear. When gypsum molds for ceramics, due to the different wear resistance and corrosion resistance and plaster aluminum oxide and silicon oxide and affect their life. Gypsum filler used in paper, adhesives or plastic, the hard coarse would reduce the processing efficiency, loss of processing equipment, the impact of surface gloss of the product. 3. Iron compounds: Gypsum iron compounds from the absorber, divided into coarse and fine particles of magnetic iron powder a coarse non-magnetic iron magnetic iron will affect the wear resistance of gypsum, can be removed separator. Finely powdered iron can not be removed by non-magnetic separator, it will affect the color of gypsum. European standards, the content of gypsum in the iron compound can not exceed 0.15 percent, 4. Calcium carbonate and magnesium carbonate: with natural gypsum different when calcined gypsum, some of which will be converted into calcium carbonate and magnesium carbonate, calcium oxide and magnesium radon. This heat when used for production of gypsum plaster board, calcium oxide and magnesium oxide will increase the pH value of the gypsum slurry, if the pH is greater than 8.5 will affect the bond paper and gypsum. Therefore, the content of gypsum plaster board used in the calcium carbonate and magnesium carbonate should be limited to 1.5%. The following article from the www.yfxmjx.com creation, please indicate the source! Contact: MGA, 15,036,196,719, Zhengzhou City, Plains coal machinery factory industry production pressure ball machine, gypsum pressure ball machine, coke end pressure ball machine, briquette press the ball machine, slag pressure ball machine, ball machine bauxite , powder ball press machine, lime pressure ball machine ball machine price pressure lowest pressure ball machine manufacturers!